Fastener for wrist-watch straps



Jan. 1l 1927.

l. R. LEDERER FASTENER FOR WRIST WATCH STRAP.

Filedl April 8, 1925 I N VEN TOR. Le afa/ef.

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UNITED STATES IRVIN Gr R. LEDERER, OF IFR'OVIIXEJTCE7 RHODE ISLAND.

FASTENER FOR W'RlST-WATCH STRAPS.

Application filed April 8,

This invention relates to an improved means for detachably connect-ing the ends =of a wrist strap to a wrist watch or other device; and the object of this invention to provide a fastening means of this character in which the strap is provided with an end folded upon itself to form an attaching loop and to provide a fastening member` on the inner face of one of the engaging parts of the strap at the fold, the fastening member being adapted to extend into a pocket in the vother adjacent part of the strap to connect the parts together.

A further object o-f the invention is to provide the overlapping parts of the strap of double thickness so that the permanently attached end of the connecting member whether it be a button or a tongue member, may be attached to the inner layer of the stock, the doubled portion of the adjacent part being arranged to providev a pocket into which the free end of the tongue or button may be passed to secure the two parts of the strap together by which construction the fastening element is entirely concealed when the overlying parts are connected together.

With these and other-objects in view, the invention consists of certain novelv features of construction, as will be morefully described, and particularly pointed yout inthe appended claims. v

In the accompanying drawings:

Figure l is a perspective view illustrating my improved fastening means as connecting together the folded ends of the strap, either that portion folded through the bail of the watch or that portion folded through the bar of the buckle.

Figure 2 is a perspective view illustrating the folded portion at one end of the strap and showing the hook adapted to be passed into the pocket in the adjacent portion of the strap.

Figure 3 is a perspective view of the strip of metal which forms the fastening tongue member.

Figure a is a sectional elevation illustrating one end of the tongue as having been secured in position to the foldableend of the strap.

Figure 5 is an inner face view of the strap showing the foldable end portion in extended posit-ion and the fastening linger secured thereto.

Figure 6 shows the folded portion with 1926. Serial No. 100,592'.

the fastening tongue in slightly open posi-V tion.

Figure 7 shows the end portion of the strap in folded position with the locking tongue in its pocket to secure the end in folded position.

Figure 8 is a sectional end view on line S-S of Figure 7.

Figure 9 shows the fixed end o-f the locking tongue as secured to the inner'layer of metal of the folding member so that this secured portion will be hidden from view when the strap is in folded position.

Figure 10 is a modification showing a locking button instead of a tongue as secured to the inner face of the folded por-` tion to be inserted into the pocket in the Y part against which it is folded.

Figure ll shows the button as having two heads, one of which is permanently fixed and is covered by an outer layer of stock of the strap andthe free end or head as being inserted into the pocket in the inner face of the adjacent part whereby/the connecting button is renderedV invisible when the strap end is in folded position.

itis found in the practical use of straps for holding wrist watches, ornaments or other wrist devices, of advantage to d0 away with the usual metal hook ordinarily employed for attachment to the bail of a watch and to pass the strap directly through the bail of the watch and fold it back upon itself and secure the end with a suitable fastener member which mayV be hooked or passedinto a pocket or receiving opening in the inner face of the overlapping portion of the strap, thus obviating the necessity of permanently sewing the folded end ofthe strap in order to provide a suitable attaching loop; and the following is a detailed description of the present embodiment of my invention and showing one construction of attaching members by which these advantageous results may be accomplished- V17 ith reference to the drawings, 10 designates a strap member which may be formed of leather, canvas, silk or other suitable flexible material, the same being adapted to have one end 1l folded back upon itself and means being provided for securely attaching this folded end against the under side of the body of the strap. Also, in some instances, it is found of advantage to attach the opposite end 12 of the strap to the bar of the buckle 13 and to fold this part back thereto.

18 of the strap, which layer by being at? tached by its edges only, forms a pocket into which this tongue is hooked to secure the folded end of the strap in position, as best illustrated in Figure 7.

In some instances, I provide a lining 19 or double thickness of stock on the inner face of the folded end, as best illust-rated in Figure 9, to which the end 15 of the tongue is permanently att-ached, so that the outer layer of material will cover this attached portion of the tongue.

In some instances, instead of using a tongue of metal for attaching the folded portion, I employ a button 20, see Figures 10 and 1l, the head of which is adapted to lit into the pocket 21 in the adjacent portion vof the strap to secure the parts together and in some instances the button is provided with a second head 22 which is permanently secured between the inner layer 23 and the outeil layer of the `strap so that when the strap is in folded position the attaching member is invisible.

My improved attachment for this watch strap is very simple and practical in construction and is effective in its operation and may serve to quickly attach the end of the strap about the watch bail and the opposite end may be similarly connected about the buckle bar, if desired.

The foregoing description is directed sole ly towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the machanica-l changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

l. A Wrist watch strap having a loop formed by the end portion of the strap being folded back upon itself` to overlap a portion thereof, one of the overlapping portions being of double thickness and having a pocket and the'other of the overlapping portions having a projecting member for entering said pocket to hold the folded back end portion in position.

2. A wrist watch strap having a loop formed by the end portion of the strap being of double thickness and folded back upon itself, a pocket formed in the strap material on the inner surface of one of the portions of the loop, and a projecting tongue member on the other portion of the loop secured to 'the inner of said parts of the double thickness to hook into said pocket to provide a concealed fastening.

A wrist watch strap having .an end portion folded back upon itself both of the overlapping parts being of double thickness,

a tongue attached at one end to the inner layer of stock, said attaching portion being covered by the outer layer of stock, and a ture.

IRVING R. LEDERER. 

